CN212933214U

CN212933214U - Adjusting module and projector

Info

Publication number: CN212933214U
Application number: CN202022381390.5U
Authority: CN
Inventors: 许焜程
Original assignee: Coretronic Corp
Current assignee: Coretronic Corp
Priority date: 2020-03-18
Filing date: 2020-10-23
Publication date: 2021-04-09
Anticipated expiration: 2030-10-23
Also published as: US20210294188A1; US11269242B2; EP3893036A1; EP3893036B1

Abstract

The utility model provides an adjustment module and projector. The adjusting module comprises a frame, an optical component, an elastic component and at least one adjusting piece. The optical assembly is fixed on the elastic assembly. The elastic component is detachably assembled on the frame and comprises a fixing part, a first elastic part and a second elastic part. The fixing part is fixed on the optical component. The first elastic part comprises a first clamping hook and a first elastic arm which are connected with each other. The first elastic arm is connected with the fixing part and the first clamping hook assembly frame. The second elastic part comprises a second clamping hook and a second elastic arm which are connected with each other. The second elastic arm is connected with the fixing part and the second clamping hook assembly frame. The adjusting piece is arranged in at least one through hole of the frame in a penetrating way and is abutted against the optical assembly. When the adjustment member is adjusted, the optical assembly is displaced relative to the frame on a plane perpendicular to the incident optical axis. The utility model discloses an adjustable optical assembly of adjusting module and the projector that adopts this adjusting module reaches the projection quality of preferred to the position of optimization.

Description

Adjusting module and projector

Technical Field

The present invention relates to an adjusting module and a projector, and more particularly to an adjusting module capable of adjusting the position of an optical assembly and a projector using the same.

Background

Generally, in the manufacturing process of the projector, since there is a certain manufacturing tolerance in the manufacturing of the optical engine body and the machining precision of the machine components, the position of the light beam incident on the light inlet of the integration rod may deviate from the original optimized design position after the components are assembled. In this case, if the optical efficiency is to be optimized, the incident light can enter the integrating rod as far as possible by adjusting the relative position between the incident light and the light inlet of the integrating rod, so as to reduce the loss of the incident light. However, since the lenses placed in the grooves are fixed by the elastic pieces, the positions of the lenses cannot be shifted. Therefore, the current method for adjusting the relative position of the incident light and the light inlet of the integration rod can only adjust the displacement of the integration rod relative to the incident light.

The background section is only provided to aid in understanding the present invention, and therefore the disclosure in the background section may include some prior art that does not constitute a part of the knowledge of those skilled in the art. The disclosure in the "background" section does not represent that matter or the problems which may be solved by one or more embodiments of the present invention are known or appreciated by those skilled in the art prior to the filing of the present application.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adjustment module can make optical assembly for the frame displacement on the plane of perpendicular to incident optical axis to adjust optical assembly to the position of optimization.

The utility model provides a projector, it includes foretell adjusting module, can have the projection quality of preferred.

In order to achieve one or a part of or all of the above or other objects, an embodiment of the present invention provides an adjusting module, which includes a frame, an optical assembly, an elastic assembly, and at least one adjusting member. The optical assembly is fixed on the elastic assembly. The elastic component is detachably assembled on the frame and comprises a fixing part, a first elastic part and a second elastic part. The fixing part is fixed on the optical component. The first elastic part comprises a first clamping hook and a first elastic arm which are connected with each other. The first elastic arm is connected with the fixing part and the first clamping hook assembly frame. The second elastic part comprises a second clamping hook and a second elastic arm which are connected with each other. The second elastic arm is connected with the fixing part and the second clamping hook assembly frame. The frame is provided with at least one through hole, and the at least one adjusting piece penetrates through the at least one through hole and is abutted against the optical assembly. When the at least one adjusting piece is adjusted, the optical assembly is displaced on a plane perpendicular to the incident optical axis relative to the frame.

In order to achieve one or a part of or all of the above or other objectives, an embodiment of the present invention provides a projector, including a light source, an adjustment module, a light valve, and a projection lens. The light source is used for emitting a first illumination light beam. The adjusting module is configured on the path of the first illumination light beam. The adjusting module comprises a frame, an optical component, an elastic component and at least one adjusting piece. The optical assembly is fixed on the elastic assembly. The elastic component is detachably assembled on the frame. The elastic component comprises a fixed part, a first elastic part and a second elastic part. The fixing part is fixed on the optical component. The first elastic part comprises a first clamping hook and a first elastic arm which are connected with each other. The first elastic arm is connected with the fixing part and the first clamping hook assembly frame. The second elastic part comprises a second clamping hook and a second elastic arm which are connected with each other. The second elastic arm is connected with the fixing part and the second clamping hook assembly frame. The frame has at least one through hole, and the at least one adjusting member passes through the at least one through hole and abuts against the optical assembly. When the at least one adjusting piece is adjusted, the optical assembly is displaced on a plane perpendicular to the incident optical axis relative to the frame. The first illumination beam is converted into a second illumination beam by the optical assembly. The light valve is configured on the path of the second illumination beam. The second illumination beam is converted into an image beam by the light valve. The projection lens is configured on the path of the image beam and is used for converting the image beam into a projection beam.

Based on the above, the embodiments of the present invention have at least one of the following advantages or effects. The present invention provides an optical module, which can be displaced to an optimized position and has a better optical efficiency when adjusting an adjusting member. In addition, adopt the utility model discloses a projector of adjustment module then can have the projection quality of preferred.

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic diagram of a projector according to an embodiment of the present invention.

Fig. 2A is a perspective view of an adjustment module of the projector of fig. 1.

Fig. 2B is an exploded perspective view of the adjustment module of fig. 2A.

Fig. 2C is an assembly view of the frame and the adjusting member of the adjusting module of fig. 2A.

FIG. 2D is an assembly diagram of the elastic component and the optical component of the adjustment module of FIG. 2A.

Fig. 2E and fig. 2F are perspective views of the elastic element of the adjustment module of fig. 2A from different viewing angles.

Fig. 2G and fig. 2H are schematic diagrams illustrating the adjusting module of fig. 2A before and after adjusting the optical assembly.

FIG. 2I is a perspective view of another perspective of the frame, trim, optical assembly, and elastic assembly of FIG. 2A. Fig. 3A is a schematic perspective view of an adjusting module according to another embodiment of the present invention.

Fig. 3B and 3C are partially exploded perspective views of the adjustment module of fig. 3A from different viewing angles.

Fig. 3D is an exploded view of the frame, the optical assembly, the elastic assembly, the adjusting member and the locking member of the adjusting module of fig. 3A.

List of reference numerals

10 projector

12 light source

14 light valve

16 projection lens

100a, 100b adjustment module

110a, 110b frame

111b, 123b, 132a, 132b, 134b, locking holes

112a, 112b main body part

113 positioning opening

114a first boss

114b convex base

115a first through hole

115b perforation

116a second boss

116b card slot

117a second through hole

118a first card slot

119a second card slot

120a optical component

122a bearing seat

124a second lens

130a elastic component

131a fixed part

133a first elastic part

133a1 first hook

133a2 first elastic arm

133a3, 137a3 holes for abduction

135a second elastic part

135a1 second hook

135a2 second elastic arm

137a third elastic part

137a1 third hook

137a2 third elastic arm

139a fourth elastic part

139a1 fourth hook

139a2 fourth elastic arm

140a1 first adjusting screw

140a2 second adjusting screw

140b adjusting screw

150 first lens

160. 162, 164, 166 locking part

166b a stopper

170 bearing part

171 bottom plate

173 side plate

175 positioning hole

172 convex column

180: cover plate

182 adjusting hole

A is axial direction of the screw

A1 first axial direction

A2 second axial direction

D1 and D3 the first direction

D2, D4 second direction

C1 first containing space

C2 second accommodating space

L11 first illumination Beam

L12 second illumination Beam

L2 image Beam

L3 projection Beam

S1 first side edge

S2 second side edge

X1 incident optical axis

X2 exit optical axis.

Detailed Description

The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.

Fig. 1 is a schematic diagram of a projector according to an embodiment of the present invention. Referring to fig. 1, in the present embodiment, a projector 10 includes a light source 12, an adjustment module 100a, a light valve 14, and a projection lens 16. The light source 12 is configured to emit a first illumination beam L11. The adjusting module 100a is disposed on the path of the first illumination light beam L11, and the first illumination light beam L11 is converted into the second illumination light beam L12 by the optical element 120a in the adjusting module 100 a. The light valve 14 is disposed on the path of the second illumination beam L12, and the second illumination beam L12 is converted into the image beam L2 by the light valve 14. The projection lens 16 is disposed on the path of the image beam L2 and is configured to convert the image beam L2 into the projection beam L3.

Specifically, the light source 12 is, for example, a light emitting diode light source or a Laser light source, for example, a Laser diode Bank (Laser diode Bank). Specifically, the light source that meets the volume requirement in actual design can be implemented, but the present invention is not limited thereto. The light valve 14 is a reflective light modulator such as a Liquid Crystal On Silicon (LCOS) panel, a Digital Micromirror Device (DMD), or the like. In one embodiment, the light valve 14 is a transmissive light Modulator such as a transmissive Liquid Crystal Panel (transmissive Liquid Crystal Panel), an Electro-Optic Modulator (Electro-Optical Modulator), a magneto-Optic Modulator (magneto-Optical Modulator), an Acousto-Optic Modulator (AOM), but the embodiment is not limited to the type and type of the light valve 14. The projection lens 16 is disposed on the transmission path of the image beam L2, and projects the image beam L2 out of the projector 10. The projection lens 16 includes, for example, a combination of one or more optical lenses having diopter, including, for example, various combinations of non-planar lenses such as a biconcave lens, a biconvex lens, a meniscus lens, a convex-concave lens, a plano-convex lens, and a plano-concave lens. In one embodiment, the projection lens 16 may also include a plane optical lens, which converts the image beam L2 from the light valve 14 into the projection beam L3 in a reflective or transmissive manner and projects the projection beam out of the projector 10. In this embodiment, the type and kind of the projection lens 16 are not limited.

Fig. 2A is a perspective view of an adjustment module of the projector of fig. 1. Fig. 2B is an exploded perspective view of the adjustment module of fig. 2A. Fig. 2C is an assembly view of the frame and the adjusting member of the adjusting module of fig. 2A. FIG. 2D is an assembly diagram of the elastic component and the optical component of the adjustment module of FIG. 2A. Fig. 2E and fig. 2F are perspective views of the elastic element of the adjustment module of fig. 2A from different viewing angles. Fig. 2G and fig. 2H are schematic diagrams illustrating the adjusting module of fig. 2A before and after adjusting the optical assembly.

Referring to fig. 2A, fig. 2B, fig. 2D, fig. 2G and fig. 2H, in the present embodiment, the adjusting module 100a includes a frame 110a, an optical element 120a, an elastic element 130a and at least one adjusting element (e.g., a first adjusting screw 140a 1). The optical element 120a is fixed to the elastic element 130a, and the elastic element 130a is detachably assembled on the frame 110 a. The frame 110a and the elastic member 130a fix the optical member 120 a. The elastic component 130a includes a fixing portion 131a, a first elastic portion 133a and a second elastic portion 135 a. The fixing portion 131a of the elastic member 130a is fixed to the optical member 120 a.

The first elastic part 133a includes a first hook 133a1 and a first elastic arm 133a2 connected to each other.

The first elastic arm 133a2 is connected to the fixing portion 131a, and the first hook 133a1 is assembled to the frame 110 a.

The second elastic part 135a includes a second hook 135a1 and a second elastic arm 135a2 connected to each other.

The second elastic arm 135a2 is connected to the fixing portion 131a, and the second hook 135a1 is assembled to the frame 110 a.

The frame 110a has at least one through hole (e.g., the first through hole 115a), and at least one adjusting member (e.g., the first adjusting screw 140a1) is disposed through the first through hole 115a and abuts against the optical element 120a, more specifically, the inner surface of the first through hole 115a is threaded to provide the first adjusting screw 140a1 with rotational movement. In particular, when the first adjustment screw 140a1 is adjusted, the optical element 120a is displaced relative to the frame 110a in a plane perpendicular to the incident light axis X1 (shown in fig. 2G). When the first adjustment screw 140a1 applies a force to the optical element 120a in the first direction D1 parallel to the screw axis (i.e., the first axis a1), the optical element 120a is pushed to displace relative to the frame 110a in the first direction D1. At this time, the first elastic arm 133a2 and the second elastic arm 135a2 are elastically deformed, so that the first elastic portion 133a and the second elastic portion 135a provide a reaction force opposite to the first direction D1. When the first adjustment screw 140a1 moves in a direction parallel to the first direction D1, the first elastic portion 133a and the second elastic portion 135a provide a reaction force opposite to the first direction D1 to push the optical element 120a to move in a direction opposite to the first direction D1 with respect to the frame 110 a.

More specifically, the adjusting module 100a of the present embodiment further includes a first lens 150, and the frame 110a includes a positioning opening 113. The optical assembly 120a includes a carrier 122a and a second lens 124 a. The first lens 150 is fixed in the positioning opening 113 of the frame 110a, and the bearing seat 122a bears the second lens 124 a. When the first adjustment screw 140a1 is adjusted, the second lens 124a of the optical assembly 120a is displaced relative to the first lens 150 on a plane perpendicular to the incident optical axis X1. As shown in fig. 2G and 2H, since the second lens element 124a has a refractive index, when the incident light passes through the first lens element 150 and enters the second lens element 124a at different positions, the light path of the emergent light can be changed. When the second lens 124a is displaced relative to the first lens 150 on a plane perpendicular to the incident light axis X1, the emergent light axis X2 is shifted from the incident light axis X1, for example, the emergent light axis X2 is not parallel to the incident light axis X1, so as to adjust the position of the light beam entering the integrator (not shown) through the second lens 124 a. In short, the adjusting module 100a of the present embodiment can displace the second lens 124a on a plane perpendicular to the incident light axis X1, thereby adjusting the position of the light beam entering the integrating rod (not shown) through the second lens 124a, which has better optical efficiency.

In detail, referring to fig. 2A to 2D, the frame 110a of the present embodiment includes a main body 112A, a first side edge S1 located on the main body 112A, and a first card slot 118 a. The first card slot 118a and the first side edge S1 are disposed corresponding to each other. Specifically, the first slot 118a and the first side edge S1 are disposed on opposite sides of the positioning opening 113, and a side of the first slot 118a is parallel to the first side edge S1. During the assembly process, the locking member 160 penetrates through the locking hole 132a of the elastic element 130a and is locked in the locking hole 123 of the supporting base 122a, so as to lock the elastic element 130a on the supporting base 122a of the optical element 120 a. Then, the optical element 120a and the elastic element 130a are assembled to the frame 110 a. At this time, the optical element 120a is located between the frame 110a and the elastic element 130 a. The first hook 133a1 is engaged with the first side edge S1, and the second hook 135a1 is engaged with the first engaging groove 118a, so that the frame 110a, the optical element 120a and the elastic element 130a are assembled together by friction and elasticity, thereby completing the assembly of the adjusting module 100 a. When the position of the optical element 120a relative to the frame 110a is to be adjusted, the first adjusting screw 140a1 can be rotated to move the optical element 120a in a direction parallel to the first direction D1, so as to adjust the position of the optical element, so that the light beam can strike a better position (e.g., the entrance of the integrating rod) and achieve better optical efficiency.

Referring to fig. 2A to 2F, in order to further adjust the optical assembly to a proper position, the elastic assembly 130a of the present embodiment may further optionally include a third elastic portion 137a and a fourth elastic portion 139a, and the frame 110a may further include a second engaging groove 119a and at least one boss protruding from the main body portion 112A, such as the first boss 114a and the second boss 116 a. The main body 112a further includes a first side edge S1 and a second side edge S2 perpendicular to each other, but the present invention is not limited thereto, and in other embodiments, the included angle between the first side edge S1 and the second side edge S2 may be between 60 degrees and 90 degrees. The first boss 114a and the second boss 116a are respectively located at the first side edge S1 and the second side edge S2. The at least one through hole includes a first through hole 115a and a second through hole 117 a. The first boss 114a has a first through hole 115a, and the second boss 116a has a second through hole 117 a. The first engaging groove 118a and the first protruding seat 114a are disposed corresponding to each other. The second engaging groove 119a and the second boss 119a are disposed corresponding to each other. In detail, the first engaging groove 118a and the first protruding seat 114a are disposed on two opposite sides of the positioning opening 113, and the second engaging groove 119a and the second protruding seat 119a are disposed on two opposite sides of the positioning opening 113. More specifically, a side of the first slot 118a is parallel to the first boss 114a (a side of the first slot 118a is parallel to the first side edge S1), and a side of the second slot 119a is parallel to the second boss 116a (a side of the second slot 119a is parallel to the second side edge S2).

More specifically, the first hook 133a1 of the embodiment is slidably fastened to the first side edge S1 of the frame 110a and defines a first accommodating space C1 with the first elastic arm 133a2, wherein the first protrusion 114a is located in the first accommodating space C1. The third elastic part 137a includes a third hook 137a1 and a third elastic arm 137a2 connected to each other. The third hook 137a1 is slidably fastened to the second side edge S2 of the frame 110a and defines a second accommodating space C2 with the third elastic arm 137a2, wherein the second convex seat 116a is located in the second accommodating space C2. The second hook 135a1 is slidably locked in the first slot 118a of the frame 110 a. The fourth elastic part 139a includes a fourth hook 139a1 and a fourth elastic arm 139a2 connected to each other. The fourth hook 139a1 is slidably fastened to the second slot 119a of the frame 110 a.

Here, the length of the third elastic arm 137a2 is equal to the length of the first elastic arm 133a2, while the length of the second elastic arm 135a2 is greater than the length of the first elastic arm 133a2, and the length of the fourth elastic arm 139a2 is equal to the length of the second elastic arm 135a 2. That is, the length of the first elastic arm 133a2 is smaller than the length of the second elastic arm 135a2, and the length of the third elastic arm 137a2 is smaller than the length of the fourth elastic arm 139a2, so that the elastic element 130a has enough moving margin to prevent the elastic element 130a from being pushed to arch when the adjustment member is adjusted. Preferably, the structure of the first elastic portion 133a is substantially the same as that of the third elastic portion 137a, and the structure of the second elastic portion 135a is substantially the same as that of the fourth elastic portion 139 a.

Referring to fig. 2A, fig. 2B and fig. 2F, the at least one adjusting element of the present embodiment includes a first adjusting screw 140a1 and a second adjusting screw 140a 2. The first adjusting screw 140a1 passes through the first through hole 115a and has a first axial direction a 1. The second adjusting screw 140a2 passes through the second through hole 117a and has a second axial direction a 2. The first and second axial directions a1 and a2 are perpendicular to each other. More specifically, the first elastic portion 133a has a relief hole 133a3 (as shown in fig. 2F), and the relief hole 133a3 exposes a portion of the carrier 122a of the optical element 120 a. The first adjusting screw 140a1 passes through the first through hole 115a and the offset hole 133a3 to abut against the bearing seat 122 a. Similarly, the third elastic portion 137a has a relief hole 137a3 (as shown in fig. 2F), and the relief hole 137a3 exposes a portion of the carrier 122a of the optical element 120 a. The second adjusting screw 140a2 passes through the second through hole 117a and the relief hole 137a3 to abut against the bearing seat 122 a.

Referring to fig. 2A, fig. 2B and fig. 2D, when the first adjusting screw 140a1 applies a force to the optical element 120a in the first direction D1 parallel to the first axial direction a1, the optical element 120a is driven to move along the first direction D1 relative to the frame 110a, the first elastic portion 133a and the second elastic portion 135a provide a reaction force opposite to the first direction D1, and the third hook 137a1 of the third elastic portion 137a and the fourth hook 139a2 of the fourth elastic portion 139a move along the first direction D1 in the second side edge S2 and the second slot 119a, respectively. Similarly, when the second adjustment screw 140a2 applies a force to the optical element 120a in the second direction D2 parallel to the second axis a2, the optical element 120a is driven to move along the second direction D2 relative to the frame 110a, the third elastic portion 137a and the fourth elastic portion 139a provide a reaction force opposite to the second direction D2, and the first hook 133a1 of the first elastic portion 133a and the second hook 135a1 of the second elastic portion 135a move along the second direction D2 in the first side edge S1 and the first slot 118a, respectively. Thereby, the second lens 124a can be displaced relative to the first lens 150 on a plane perpendicular to the incident light axis X1 to adjust the position of the light beam entering the integrating rod (not shown) through the second lens 124 a.

During the assembly process, the optical element 120a and the elastic element 130a locked together may be assembled to the frame 110 a. The first hook 133a1 and the third hook 137a1 are slidably engaged with the first side edge S1 and the second side edge S2, respectively, and the second hook 135a1 and the fourth hook 139a1 are slidably engaged with the first slot 118a and the second slot 119a, respectively, so that the frame 110a, the optical element 120a and the elastic element 130a are assembled together by friction and elastic force, thereby completing the assembly of the adjustment module 100 a. When the position of the optical element 120a relative to the frame 110a is to be adjusted, the first adjusting screw 140a1 or/and the second adjusting screw 140a2 may be rotated to adjust the position of the optical element 120a to an optimum position, so that the light beam can be directed to a correct position (e.g., the entrance of the integrator rod) to achieve an optimum optical efficiency.

In short, in the adjusting module 100a of the embodiment, the elastic element 130a can drive the optical element 120a to move relative to the frame 110a on a plane perpendicular to the incident light axis X1, so that the optical element 120a can move to an optimized position, and thus has better optical efficiency. In addition, the projector 10 using the adjustment module 100a of the present embodiment has better projection quality.

FIG. 2I is a perspective view of another perspective of the frame, trim, optical assembly, and elastic assembly of FIG. 2A. Referring to fig. 2A to 2I, in detail, the first adjusting screw 140a1 is sequentially inserted through the first through hole 115a of the first boss 114a of the frame 110a and the opening formed by the first hook 133a1 and the first elastic arm 133a2 of the elastic element 130a, and abuts against the bearing seat 122A of the optical element 120 a. When the first adjustment screw 140a1 is adjusted, the optical element 120a is displaced relative to the frame 110a on a plane perpendicular to the incident light axis X1 (shown in fig. 2G). When the first adjusting screw 140a1 applies a force to the optical element 120a in the first direction D1 parallel to the screw axis direction (i.e., the first axis direction a1), the supporting base 122a of the optical element 120a is pushed to displace relative to the frame 110a in the first direction D1. At this time, the first elastic arm 133a2 and the second elastic arm 135a2 are elastically deformed, so that the first elastic portion 133a and the second elastic portion 135a provide a reaction force opposite to the first direction D1. When the first adjustment screw 140a1 moves in a direction parallel to the first direction D1, the first elastic portion 133a and the second elastic portion 135a provide a reaction force opposite to the first direction D1 to push the optical element 120a to move in a direction opposite to the first direction D1 with respect to the frame 110 a.

It should be noted that the following embodiments follow the reference numerals and parts of the contents of the foregoing embodiments, wherein the same reference numerals are used to indicate the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

Fig. 3A is a schematic perspective view of an adjusting module according to another embodiment of the present invention. Fig. 3B and 3C are partially exploded perspective views of the adjustment module of fig. 3A from different viewing angles. Fig. 3D is an exploded view of the frame, the optical assembly, the elastic assembly, the adjusting member and the locking member of the adjusting module of fig. 3A.

Referring to fig. 3A, fig. 3B, fig. 3C and fig. 3D, the adjusting module 100B of the present embodiment includes a frame 110B, an optical element 120B, an elastic element 130B and an adjusting element (e.g., an adjusting screw 140B). The optical element 120b is fixed to the elastic element 130b, and the elastic element 130b is detachably assembled on the frame 110 b. The elastic component 130b includes a fixing portion 131b, a first elastic portion 133b and a second elastic portion 135 b. The fixing portion 131b of the elastic member 130b is fixed to the optical member 120 b. The first elastic part 133b includes a first hook 133b1 and a first elastic arm 133b2 connected to each other. The first elastic arm 133b2 is connected to the fixing portion 131b, and the first hook 133b1 is assembled to the frame 110 b. The second elastic part 135b includes a second hook 135b1 and a second elastic arm 135b2 connected to each other. The second elastic arm 135b2 is connected to the fixing portion 131b, and the second hook 135b1 is assembled to the frame 110 b. The frame 110b has a through hole 115b, and the adjusting screw 140b is disposed through the through hole 115b and abuts against the optical element 120 b.

In particular, when the adjusting screw 140b is adjusted, the elastic element 130b drives the optical element 120b to move relative to the frame 110b on a plane perpendicular to the incident light axis X. When the adjusting screw 140b applies a force to the optical element 120b in the first direction D3 parallel to the screw axis a, the optical element 120b is pushed to displace relative to the frame 110b in the first direction D3. At this time, the first elastic arm 133b2 and the second elastic arm 135b2 are elastically deformed, so that the first elastic portion 133b and the second elastic portion 135b provide a reaction force opposite to the first direction D3.

More specifically, the first hook 133b1 and the second hook 135b1 of the present embodiment are respectively fixed to the frame 110 b. The frame 110b includes a main body 112b and a boss 114b protruding from the main body 112 b. The boss 114b is located at a side of the main body 112b, the boss 114b has a through hole 115b, and the adjusting screw 140b passes through the through hole 115b and abuts against the optical element 120 b. The number of the first elastic arms 133b2 is two, and the first elastic arms are located at two sides of the adjusting screw 140 b. The two second elastic arms 135b2 are located at opposite sides of the two first elastic arms 133b2, and the length of each first elastic arm 133b2 is greater than the length of each second elastic arm 135b 2. When the adjusting screw 140b applies a force to the optical element 120b in a first direction D3 parallel to the screw axis a, the optical element 120b is driven to displace relative to the frame 110b in the first direction D3. At this time, the first elastic arm 133b2 of the first elastic part 133b and the second elastic arm 135b2 of the second elastic part 135b are elastically deformed to provide a reaction force opposite to the first direction D3.

More specifically, the adjusting module 100b of the present embodiment further includes a carrier 170, wherein the carrier 170 includes at least one convex pillar (two convex pillars 172 are schematically illustrated). The frame 110b has at least one slot (two slots 116b are schematically shown), and the slot 116b and the boss 114b are respectively located at two opposite sides of the main body 112 b. In particular, the protrusion 172 is slidably disposed in the slot 116b to drive the optical element 120b to move in a second direction D4 perpendicular to the first direction D3. Here, the carrier 170 may be, for example, a carriage housing or a plate disposed between the carriage housing and the frame, which is not limited herein. Furthermore, the carrier 170 of the present embodiment further includes a bottom plate 171 and an opposite side plate 173 connected to the bottom plate 171. The side plates 173 respectively have positioning holes 175, and the frame 110b has two limiting portions 166b opposite to each other. The locking members 166 can be respectively positioned in the positioning holes 175 of the side plates 173 through the limiting portions 166 b. In addition, the adjusting module 100b of the present embodiment further includes a cover plate 180, wherein the cover plate 180 covers the side plate 173 of the carrier 170 and has a plurality of adjusting holes 182 exposing the adjusting screws 140b and the locking members 166.

In the assembling process, the locking member 162 passes through the locking hole 132b of the elastic element 130b and is locked to the locking hole 123b of the bearing seat 122b of the optical element 130b, so as to lock the elastic element 130b to the bearing seat 122b, and the locking member 164 passes through the locking hole 134b of the elastic element 130b and the locking hole 111b of the frame 110b, so as to lock the elastic element 130b to the frame 110b, specifically, the locking hole 134b is disposed on the first hook 133b1 and the second hook 135b1, for example. At this time, the optical element 120b is located between the frame 110b and the elastic element 130 b. Then, the fixed frame 110b, the optical component 120b and the elastic component 130b are placed on the bottom plate 171 of the carrier 170, wherein the protruding pillar 172 of the carrier 170 is slidably connected in the slot 116b of the frame 110 b. Thereafter, the locking members 166 can be respectively positioned in the positioning holes 175 of the side plates 173 of the carrier 170 through the limiting portions 166b of the frame 110 b. Finally, the cover plate 180 is assembled to the side plate 173 of the carrier 170, thereby completing the assembly of the adjustment module 100 b.

When the position of the optical element 120b relative to the frame 110b in the first direction D3 is to be adjusted, the adjusting screw 140b is rotated to push the optical element 120b to displace relative to the frame 110b in the first direction D3, and the first elastic arm 133b2 and the second elastic arm 135b2 elastically deform, so that the first elastic portion 133b and the second elastic portion 135b provide a reaction force opposite to the first direction D3. When the first adjustment screw 140a1 moves in a direction parallel to the first direction D3, the first elastic portion 133b and the second elastic portion 135b provide a reaction force opposite to the first direction D3 to push the optical element 120b to move in a direction opposite to the first direction D3 with respect to the frame 110 b. When the position of the optical element 120b in the second direction D4 is to be adjusted, the supporting element 170 is pushed along the second direction D4, so that the protruding pillar 172 of the supporting element 170 slides in the engaging groove 116b of the frame 110b, and the optical element 120b is driven to move along the second direction D4. Thus, the optical element 120b can be adjusted to the optimal position so that the light beam can be directed to the correct position (e.g., the entrance of the integrating rod) to achieve the optimal optical efficiency. Specifically, in the present embodiment, the optical assembly 120b includes the elastic assembly 130b and the supporting member 170, so that the optical assembly 120b can be adjusted and moved in multiple directions, but the present invention is not limited thereto. In other embodiments, the optical assembly does not include the supporting member 170, and the elastic member 130b can adjust the position of the optical assembly in one direction to achieve better optical efficiency.

In summary, the embodiments of the present invention have at least one of the following advantages or effects. The present invention provides an optical module, which can be displaced to an optimized position and has a better optical efficiency when adjusting an adjusting member. In addition, adopt the utility model discloses a projector of adjustment module then can have the projection quality of preferred.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the specification should be included in the scope of the present invention. Furthermore, it is not necessary for any embodiment or claim of the invention to achieve all of the objects, advantages, or features disclosed herein. Furthermore, the abstract and the title of the specification are provided only for assisting the retrieval of patent documents and are not intended to limit the scope of the present invention. Furthermore, the terms "first", "second", and the like in the description or the claims are used only for naming elements (elements) or distinguishing different embodiments or ranges, and are not used for limiting the upper limit or the lower limit on the number of elements.

Claims

1. An adjustment module, comprising a frame, an optical assembly, an elastic assembly and at least one adjustment member, wherein:

the optical component is fixed on the elastic component;

elastic component detachably assemble in on the frame, elastic component includes fixed part, first elastic component and second elastic component, wherein:

the fixed part is fixed on the optical component;

the first elastic part comprises a first clamping hook and a first elastic arm which are connected with each other, wherein the first elastic arm is connected with the fixing part, and the first clamping hook is assembled on the frame; and

the second elastic part comprises a second clamping hook and a second elastic arm which are connected with each other, wherein the second elastic arm is connected with the fixing part, and the second clamping hook is assembled on the frame;

the frame is provided with at least one through hole, and the at least one adjusting piece is arranged in the through hole in a penetrating way and is abutted against the optical assembly; and

when the at least one adjusting piece is adjusted, the optical assembly is displaced relative to the frame on a plane perpendicular to an incident optical axis.

2. The adjustment module of claim 1, further comprising a first lens,

the frame comprises a positioning opening, the optical assembly comprises a bearing seat and a second lens, the first lens is fixed in the positioning opening, the bearing seat bears the second lens, and when the at least one adjusting piece is adjusted, the second lens of the optical assembly is displaced on the plane vertical to the incident optical axis relative to the first lens.

3. The adjustment module of claim 1, wherein the frame comprises a main body portion and a first boss and a second boss protruding from the main body portion, the main body portion comprises a first side edge and a second side edge perpendicular to each other, the first boss and the second boss are respectively located at the first side edge and the second side edge, the at least one through hole comprises a first through hole and a second through hole, the first boss has the first through hole, and the second boss has the second through hole.

4. The adjustment module of claim 3, wherein the frame has a first slot and a second slot, the first slot and the first boss being disposed in correspondence with each other, and the second slot and the second boss being disposed in correspondence with each other, the resilient assembly further comprising a third resilient portion and a fourth resilient portion, wherein:

the first clamping hook is slidably clamped at the first side edge and defines a first accommodating space with the first elastic arm, and the first convex seat is positioned in the first accommodating space;

the third elastic part comprises a third clamping hook and a third elastic arm which are connected with each other, wherein the third clamping hook is slidably clamped on the second lateral edge and defines a second accommodating space with the third elastic arm, and the second convex seat is positioned in the second accommodating space;

the second clamping hook is slidably clamped in the first clamping groove; and

and the fourth elastic part comprises a fourth clamping hook and a fourth elastic arm which are mutually connected, wherein the fourth clamping hook is slidably clamped in the second clamping groove.

5. The adjustment module of claim 4, wherein the third spring arm has a length equal to the length of the first spring arm, the second spring arm has a length greater than the length of the first spring arm, and the fourth spring arm has a length equal to the length of the second spring arm.

6. The adjustment module of claim 4, wherein the at least one adjustment member comprises a first adjustment screw and a second adjustment screw, the first adjustment screw is disposed through the first through hole and has a first axial direction, the second adjustment screw is disposed through the second through hole and has a second axial direction, and the first axial direction and the second axial direction are perpendicular to each other.

7. The adjusting module of claim 6, wherein when the first adjusting screw applies a force to the optical component in a first direction parallel to the first axial direction, the third hook of the third elastic portion and the fourth hook of the fourth elastic portion respectively move in the second side edge and the second slot along the first direction to drive the optical component to move along the first direction relative to the frame, and the first elastic portion and the second elastic portion provide a reaction force opposite to the first direction.

8. The adjusting module of claim 7, wherein when the second adjusting screw applies a force to the optical component in a second direction parallel to the second axial direction, the first hook of the first elastic portion and the second hook of the second elastic portion respectively move in the first side edge and the first slot along the second direction to drive the optical component to move along the second direction relative to the frame, and the third elastic portion and the fourth elastic portion provide a reaction force opposite to the second direction.

9. The adjusting module of claim 1, wherein the first hook and the second hook are fixed to the frame respectively, the frame comprises a main body and a boss protruding from the main body, the boss is located on a side of the main body, the at least one through hole is a through hole, the at least one adjusting element is an adjusting screw, and the boss has the through hole and the adjusting screw penetrates through the through hole and abuts against the optical component; wherein

The two first elastic arms are positioned on two sides of the adjusting screw;

the two second elastic arms are positioned at the opposite sides of the two first elastic arms, and the lengths of the two first elastic arms are respectively greater than those of the two second elastic arms; and

when the adjusting screw applies force to the optical assembly in a first direction parallel to the axial direction of the screw, the optical assembly is driven to move in the first direction relative to the frame, and the two first elastic arms and the two second elastic arms elastically deform to provide a reaction force opposite to the first direction.

10. The conditioning module of claim 9, further comprising a carrier,

the bearing piece comprises at least one convex column, the frame is provided with at least one clamping groove, the at least one clamping groove and the convex seat are respectively positioned at two opposite sides of the main body part, and the at least one convex column is slidably positioned in the at least one clamping groove so as to drive the optical assembly to move towards a second direction perpendicular to the first direction.

11. A projector comprises a light source, an adjusting module, a light valve and a projection lens, and is characterized in that the light source is used for emitting a first illumination beam;

the adjusting module is disposed on the path of the first illumination beam and comprises a frame, an optical assembly, an elastic assembly and at least one adjusting member

The optical component is fixed on the elastic component;

the fixed part is fixed on the optical component;

when the at least one adjusting piece is adjusted, the optical assembly is displaced on a plane perpendicular to an incident optical axis relative to the frame, and the first illumination light beam is converted into a second illumination light beam through the optical assembly;

the light valve is configured on the path of the second illumination beam, and the second illumination beam is converted into an image beam through the light valve; and

the projection lens is configured on the path of the image light beam and is used for converting the image light beam into a projection light beam.